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What Causes Fluid Filled Sack Behind The Knee?
Hi, my father, 61 y.o. male, has a small fluid-filled like sac on the back of his right knee, about the size of a small cyst and kind like so, but is soft/squishy with even texture..he s had it for a few months now and complains of weakness, stiffness from that knee down. He also states that the site becomes itchy at times. He also states when he has that leg bent for several minutes plus it becomes tense, and then he experiences weakness when he gets up to walk..but if he keeps his leg straight, it is not so bothersome..any suggestions? Or clues as to what this may be.?
posted on
Wed, 30 Jul 2014
Medically reviewed by
Ask A Doctor - 24x7 Medical Review Team
Sat, 9 Aug 2014
Answered on
Mon, 11 Aug 2014
Last reviewed on
Hello...this might be a bakers cyst....dont worry its a benign...but you need to consult your doctor to get it removed...small sugery may be needed after confirmation on investigations
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